HM Digital Waterproof EC/TDS/Temperature Meter pumps-&-irrigation The CMH lamps have a

The CMH lamps have a very broad light spectrum which is more similar to the sun itself than any other form of HID lamp

Size:  10" top

This kit includes a tray and mesh tray

simple to monitor

Main Power Voltage: 240V

HM Digital Waterproof EC/TDS/Temperature Meter pumps-&-irrigation The CMH lamps have aHM Digital COM100 Water Quality Testing Meter. Waterproof. Measure EC TDS. Temperature Tester. IP 67 rating. Factory Calibrated. Ideal for all water quality testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more. The COM 100 is a professional level EC TDS meter at an unbeatable price.